iterator.js

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if( !ultimix )
{
      ultimix = {};
}

if( !ultimix.iterator )
{
      ultimix.iterator = {};
}

ultimix.iterator = function( IteratingElements , BeforeNext , EndIteration )
{
      this.current_position = 0;
      this.elements = IteratingElements;
      this.before_next = BeforeNext;
      this.end_iteration = EndIteration;

      return( this );
}

ultimix.iterator.prototype.next = function()
{
      if( jQuery( this.elements ).eq( this.current_position ).length )
      {
            this.before_next();
            this.current_position++;
      }
      else
      {
            this.end_iteration();
      }
}

ultimix.iterator.prototype.current_element = function()
{
      if( jQuery( this.elements ).eq( this.current_position ).length )
      {
            return( jQuery( this.elements ).eq( this.current_position ) );
      }
      
      return( false );
}

ultimix.iterator.prototype.prev_element = function()
{
      if( this.current_position - 1 >= 0 && jQuery( this.elements ).eq( this.current_position - 1 ).length )
      {
            return( jQuery( this.elements ).eq( this.current_position - 1 ) );
      }
      
      return( false );
}